ClassFile.build() is loading result file
Mark Roberts
markro at cs.washington.edu
Sun Jan 5 20:57:33 UTC 2025
I am using ClassFileTransformer.transform() to instrument class files as
they are loaded. Within my transform method I call
byte[] newBytes = classFile.build(classModel.thisClass().asSymbol(),
classBuilder -> modifyClass(classBuilder,
classModel, loader));
where modifyClass does all the instrumentation.
The problem is some where inside of classFile.build() the class is actually
being loaded! Thus, when I return newBytes from the transform method I get
an error ‘attempted duplicate abstract class definition’. I have verified
that the class has not be loaded prior to the return from modifyClass().
What is going on?
Thank you,
Mark
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